This engine rebuild kit is designed for GY6 150cc 4-stroke 157QMJ scooter engines. The kit includes a cylinder head with pre-installed valves, 57mm-bore cylinder, piston kit, oil pump and gear, intake and exhaust studs, roller weights, and an engine gasket set.
Product Specifications
BrandKids ATV Parts Inc
Manufacturer Part NumberEN-A0007
Product Dimensions8 x 8 x 8 inches
Explicit Manufacturer Part NumberEN-A0007
Cylinder bore57mm
Cylinder head bolt pattern76mm
Cylinder head height2 1/2 inches
ValvesPre-installed
Included componentsIntake and exhaust studs, oil pump and gear, roller weights, piston kit, and engine gasket set